MICROBIOLOGY W/DISEASES (SPIRAL) >CI<
17th Edition
ISBN: 9781323471661
Author: BAUMAN
Publisher: PEARSON C
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Chapter 9, Problem 10CT
Summary Introduction
To answer:
An experiment to prove that the given antimicrobial chemical is bacteriostatic or bactericidal against E.coli.
Introduction:
The antimicrobial drugs can be natural, synthetic, or semi-synthetic. These drugs act on the fungi, bacteria and viruses. These drugs are also used to control and eradicate the microbial growth. For example, some drugs are available in powder form that is applied on the
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A student inoculates Escherichia coli into two test tubes containing the same sterile liquid medium, except the first tube also contains a drop of a chemical disinfectant with an antimicrobial effect. After 24 hours of incubation, the first tube remains clear while the second tube becomes cloudy with bacteria. How would you go about determining if the chemical is bacteriostatic or bactericidal?
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Chapter 9 Solutions
MICROBIOLOGY W/DISEASES (SPIRAL) >CI<
Ch. 9 - Why does milk eventually go bad despite being...Ch. 9 - Prob. 1EDCSCh. 9 - Why are BSL-4 suits pressurized? Why not just wear...Ch. 9 - Prob. 3TMWCh. 9 - Prob. 4TMWCh. 9 - Prob. 1MCCh. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - Prob. 4MCCh. 9 - Prob. 5MC
Ch. 9 - Prob. 6MCCh. 9 - Prob. 7MCCh. 9 - Prob. 8MCCh. 9 - The presarva1icn of beef jerky from microbial...Ch. 9 - Prob. 10MCCh. 9 - Which of the following substances would most...Ch. 9 - Which of the following adjectives best describes a...Ch. 9 - Prob. 13MCCh. 9 - Prob. 14MCCh. 9 - Prob. 15MCCh. 9 - Prob. 16MCCh. 9 - Which of the following disinfectants acts against...Ch. 9 - Which of the following disinfectants contains...Ch. 9 - Prob. 19MCCh. 9 - Prob. 20MCCh. 9 - Describe three types of microbes that are...Ch. 9 - Compare and contrast four tests that have been...Ch. 9 - Prob. 3SACh. 9 - Why do warm disinfectant chemicals generally work...Ch. 9 - Why are Gram-negative bacteria more susceptible to...Ch. 9 - Describe five physical methods of microbial...Ch. 9 - Prob. 7SACh. 9 - Prob. 8SACh. 9 - Compare and contrast desiccation and...Ch. 9 - Prob. 10SACh. 9 - Prob. 11SACh. 9 - Prob. 12SACh. 9 - Prob. 13SACh. 9 - What are some advantages and disadvantages of...Ch. 9 - Prob. 15SACh. 9 - Calculate the decimal reduction time (D) for the...Ch. 9 - Prob. 2VICh. 9 - Prob. 1CTCh. 9 - Prob. 2CTCh. 9 - Prob. 3CTCh. 9 - Prob. 4CTCh. 9 - Over 1000 people developed severe diarrhea, and at...Ch. 9 - Prob. 6CTCh. 9 - Prob. 7CTCh. 9 - Prob. 8CTCh. 9 - Prob. 9CTCh. 9 - Prob. 10CTCh. 9 - Prob. 11CTCh. 9 - Where should you place a sterilization indicator...Ch. 9 - Why is liquid water necessary for microbial...Ch. 9 - Prob. 14CTCh. 9 - During the fall 2001 bioterrorist attack in which...Ch. 9 - What common household antiseptic contains a heavy...Ch. 9 - What is the phenol coefficient of phenol when used...Ch. 9 - Prob. 1CM
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- propose a hypothesis regarding the organisms (staphylococcus, escherichia, pseudomonas, and bacillus) that will be resistant to the most disinfectants, and why? if the hypothesis is supported, what specific experimental results will be observed? what would be the independent and dependent variable? zone size, disinfectant type, colony countarrow_forwardWhich of the following BEST describes an agent that is bacteriostatic? A) It suspends bacterial synthesis of Tranexamic Acid. B) It kills the bacteria by destroying its cell wall. C) It zaps the bacteria with static electricity. D) It suspends bacterial growth.arrow_forwardplacing bacteria at ultracold temperatures is as effective at killing microbes as the use of dry heat in incineration. is is true/false?arrow_forward
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